“…They can be altered to the viewer's preference and, within a range, most tissues can be made to look brighter or darker. The enhanced visualization of fluid using a STIR or FLAIR sequence aids in detection of pathologic change in bone and soft tissue, making these sequences of value despite the disadvantages of increased acquisition time, decreased signal-to-noise ratio, and decreased resolution [2,5]. Fast spin echo (FSE) sequences can be proton density (PD), T1-weighted, or T2-weighted.…”